"use strict";
var expect = require("chai").expect;
var TimeValuePanel = require("../../src/panel/TimeValuePanel");
module.exports = function() {
describe("DojiChart.panel.TimeValuePanel", function() {
const REGION_NAME = "a-region";
const CLASS_NAME = "component panel timepanel timevaluepanel";
const PANEL_HEIGHT = 40;
const PARENT_WIDTH = 50;
const PARENT_DRAWING_WIDTH = PARENT_WIDTH;
var HTMLCanvasElement_class = (window.document.createElement("canvas")).constructor; // a workaround to avoid jshint HTMLElement is undefined
var test_area, chart_div, region_div, dummy_parent_chart, dummy_layer;
before(function() {
test_area = window.document.getElementById("test-area");
test_area.innerHTML = ["
"].join("");
chart_div = window.document.getElementById("my-dojichart");
region_div = window.document.getElementById("test-region");
dummy_parent_chart = {
getEl: function() {
return chart_div;
},
getWidth: function() {
return PARENT_WIDTH;
},
getDrawingWidth: function() {
return PARENT_DRAWING_WIDTH;
}
};
dummy_layer = {
setParentComponent: function() { }
};
});
describe("region DIV (fixture)", function() {
it("exist", function() {
expect(region_div).to.exist;
});
it("has class name = 'region'", function() {
expect(region_div.className).to.equal("region");
});
it("has data-name = 'a-region'", function() {
expect(region_div.getAttribute("data-name")).to.equal(REGION_NAME);
});
it("empty element", function() {
expect(region_div.innerHTML).to.equal("");
});
}); // end of fixtures
describe("properties", function() {
var panel;
beforeEach(function() {
panel = new TimeValuePanel({
height: PANEL_HEIGHT
});
panel.setParentChart(dummy_parent_chart);
panel.render(REGION_NAME);
});
afterEach(function() {
region_div.innerHTML = "";
panel = undefined;
});
describe("._parent_chart property", function() {
it("should equal parent chart instance", function() {
expect(panel._parent_chart).to.equal(dummy_parent_chart);
});
});
describe(".layers property", function() {
it("should be empty array", function() {
expect(panel.layers).to.be.a.array;
expect(panel.layers.length).to.equal(0);
});
});
describe(".el property", function() {
it("should be an HTMLElement", function() {
expect(panel.el).to.be.an.instanceof(HTMLCanvasElement_class);
});
});
describe(".height property", function() {
it("should have correct value", function() {
expect(panel.height).to.equal(PANEL_HEIGHT);
});
});
}); // end of properties
describe("methods", function() {
var panel;
beforeEach(function() {
panel = new TimeValuePanel({
height: PANEL_HEIGHT
});
panel.setParentChart(dummy_parent_chart);
panel.render(REGION_NAME);
});
afterEach(function() {
region_div.innerHTML = "";
panel = undefined;
});
describe("getClassName()", function() {
it("should exist", function() {
expect(panel.getClassName).to.exist;
});
it("should return correct value (" + CLASS_NAME + ")", function() {
expect(panel.getClassName()).to.equal(CLASS_NAME);
});
});
describe("getHeight()", function() {
it("should exist", function() {
expect(panel.getHeight).to.exist;
});
it("should return correct value (" + PANEL_HEIGHT + ")", function() {
expect(panel.getHeight()).to.equal(PANEL_HEIGHT);
});
});
describe("getWidth()", function() {
it("should exist", function() {
expect(panel.getWidth).to.exist;
});
it("should return correct value (" + PARENT_WIDTH + ")", function() {
expect(panel.getWidth()).to.equal(PARENT_WIDTH);
});
});
describe("getDrawingWidth()", function() {
it("should exist", function() {
expect(panel.getDrawingWidth).to.exist;
});
it("should return correct value (" + PARENT_DRAWING_WIDTH + ")", function() {
expect(panel.getDrawingWidth()).to.equal(PARENT_DRAWING_WIDTH);
});
});
describe("getParentChart()", function() {
it("should exist", function() {
expect(panel.getParentChart).to.exist;
});
it("should return undefined", function() {
expect(panel.getParentChart()).to.equal(dummy_parent_chart);
});
});
describe("setParentChart()", function() {
it("should exist", function() {
expect(panel.setParentChart).to.exist;
});
it("should set parent chart property (after has been set)", function() {
panel.setParentChart(dummy_parent_chart);
expect(panel._parent_chart).to.equal(dummy_parent_chart);
});
});
describe("getEl()", function() {
it("should exist", function() {
expect(panel.getEl).to.exist;
});
it("should return HTMLElement (if rendered)", function() {
panel.setParentChart(dummy_parent_chart);
panel.render(REGION_NAME);
expect(panel.getEl()).to.be.an.instanceof(HTMLCanvasElement_class);
});
after(function() {
region_div.innerHTML = "";
});
});
describe("render()", function() {
it("should exist", function() {
expect(panel.render).to.exist;
});
it("should correctly create HTML", function() {
var inner_html = region_div.innerHTML;
var region_child_nodes = region_div.childNodes;
expect(inner_html).to.be.a("string");
expect(inner_html).to.not.be.empty;
expect(region_child_nodes).to.have.lengthOf(1);
var panel_node = region_child_nodes[0];
expect(panel_node.nodeName).to.equal("CANVAS");
expect(panel_node.className).to.equal(CLASS_NAME);
expect(panel_node.offsetHeight).to.equal(PANEL_HEIGHT);
});
});
describe("destroy()", function() {
it("should exist", function() {
expect(panel.destroy).to.exist;
});
it("should undefine el property", function() {
panel.destroy();
expect(panel.el).to.equal(undefined);
expect(panel.getEl()).to.equal(undefined);
});
it("should empty region DIV element", function() {
panel.destroy();
var inner_html = region_div.innerHTML;
var region_child_nodes = region_div.childNodes;
expect(inner_html).to.be.a("string");
expect(inner_html).to.be.empty;
expect(region_child_nodes).to.have.lengthOf(0);
});
});
describe("addLayer()", function() {
it("should exist", function() {
expect(panel.addLayer).to.exist;
});
it("should add layer to layers array property", function() {
var layers_length = panel.layers.length;
panel.addLayer(dummy_layer);
expect(panel.layers).to.have.lengthOf(layers_length + 1);
});
});
describe("getAllLayers()", function() {
it("should exist", function() {
expect(panel.getAllLayers).to.exist;
});
it("should return empty array if no layers added", function() {
expect(panel.getAllLayers()).to.be.an("array");
expect(panel.getAllLayers()).to.have.lengthOf(0);
});
it("should return array of 1 layer if layer added", function() {
panel.addLayer(dummy_layer);
expect(panel.getAllLayers()).to.be.an("array");
expect(panel.getAllLayers()).to.have.lengthOf(1);
expect(panel.getAllLayers()[0]).to.equal(dummy_layer);
});
});
describe("removeLayers()", function() {
it("should exist", function() {
expect(panel.removeLayers).to.exist;
});
it("should not change an empty layer array", function() {
panel.removeLayers();
expect(panel.getAllLayers()).to.be.an("array");
expect(panel.layers).to.have.lengthOf(0);
});
it("should empty populated layer array", function() {
panel.addLayer(dummy_layer);
expect(panel.layers).to.have.lengthOf(1);
panel.removeLayers();
expect(panel.getAllLayers()).to.be.an("array");
expect(panel.layers).to.have.lengthOf(0);
});
it("should leave layer specified as excluded", function() {
panel.addLayer(dummy_layer);
expect(panel.layers).to.have.lengthOf(1);
panel.removeLayers([dummy_layer]);
expect(panel.getAllLayers()).to.be.an("array");
expect(panel.layers).to.have.lengthOf(1);
expect(panel.layers[0]).to.equal(dummy_layer);
});
});
describe("setPrimaryLayer()", function() {
it("should exist", function() {
expect(panel.setPrimaryLayer).to.exist;
});
});
describe("precompute()", function() {
it("should exist", function() {
expect(panel.precompute).to.exist;
});
});
describe("draw()", function() {
it("should exist", function() {
expect(panel.draw).to.exist;
});
});
}); // end of methods
});
};